CN208389565U - Blast furnace Environmental-protection dust removal device - Google Patents
Blast furnace Environmental-protection dust removal device Download PDFInfo
- Publication number
- CN208389565U CN208389565U CN201820870323.XU CN201820870323U CN208389565U CN 208389565 U CN208389565 U CN 208389565U CN 201820870323 U CN201820870323 U CN 201820870323U CN 208389565 U CN208389565 U CN 208389565U
- Authority
- CN
- China
- Prior art keywords
- ash
- gravitational precipitator
- exclusion region
- unloading
- cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 title claims abstract description 40
- 239000012716 precipitator Substances 0.000 claims abstract description 38
- 230000007717 exclusion Effects 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 5
- 239000003034 coal gas Substances 0.000 abstract description 11
- 239000002245 particle Substances 0.000 abstract description 7
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model proposes a kind of blast furnace Environmental-protection dust removal devices, including gravitational precipitator cabinet, air inlet, ash-unloading tube and exhaust pipe are provided on the gravitational precipitator cabinet, the gravitational precipitator cabinet includes the multiple exclusion regions being axially arranged, the shape of the exclusion region is semicylinder and is interspersed two-by-two, the exclusion region is provided with the secondary ash-unloading tube being connected to gravitational precipitator cabinet, is provided with unloading valve on the secondary ash-unloading tube.The speed that the utility model advantageously reduces coal gas decline by the way that exclusion region is arranged on gravitational precipitator cabinet, be conducive to thinner particle in coal gas to settle down, this class settling improves efficiency of dust collection, the load that refined dedusting device can not only be reduced, does not increase the spatial volume of whole device also；The micronic dust accumulated on exclusion region can be cleared up one by one in deashing using water inlet, avoid there is a phenomenon where ash-unloading tube block.Whole design is relatively more reasonable, structure is simple, is suitble to large-scale promotion.
Description
Technical field
The utility model belongs to ironmaking equipment technical field more particularly to a kind of blast furnace Environmental-protection dust removal device.
Background technique
The blast furnace gas drawn from blast furnace can contain a large amount of dusts, therefore industry uses a variety of different dust removal process
Method.The most common method is the coal gas requirement for taking rough dedusting and refined dedusting two-stage treatment to reach blast furnace gas qualification.Its
In, using gravitational precipitator, gravitational precipitator is the gravitational settling by means of dust for rough dedusting, and dust is divided from gas
Separate out the equipment come.Dust is that flue gas enters gravitational settling equipment from horizontal direction by the process of gravitational settling, in the work of gravity
Under, powder dust particle gradually settles down, and gas moves in the horizontal direction, to achieve the purpose that dedusting.It has
Simple, easy to maintain, more durable and few the pressure loss advantage of structure.
Currently, the speed of control gas flowing is lower in gravitational dust collection equipment, more there is the dust tiny using sedimentation,
More be conducive to improve efficiency of dust collection.Therefore, the flowing velocity of general control gas is 1-2m/s, substantially stationary in gas flow rate
In the case of, gravitational precipitator is designed longer or higher, is more conducive to improve efficiency of dust collection, however the speed designed is too
Low, then equipment will be relatively bulky, and investment cost increases.However, gravitational precipitator is only suitable for trapping and works as coarse dust removal equipment
The particle that diameter is greater than 50 μm is measured, it is very low for the dust particle efficiency of dust collection of tiny (such as equivalent diameter is less than 50 μm), also
It is to say there was only 40-50% using only the efficiency of gravitational precipitator dedusting.It follows that gravitational precipitator can only be used as rough dedusting,
Bag-type dusting or electric precipitation must be used as refined dedusting, if but what the efficiency of dust collection of gravitational precipitator can be improved suitably
Words, not only can be improved the efficiency of whole flow process, can also improve the gas quality of process terminal recycling.In addition, existing heavy
A dust-exhausting port is only arranged in bottom in inertia force precipitator, is easy to happen blocking at the beginning of dust discharge work, influences cleaning efficiency.
Utility model content
The utility model technical problem existing in terms of efficiency of dust collection for above-mentioned gravitational precipitator, proposes one kind
Design is rationally, structure is simple, good dedusting effect and unloads the convenient blast furnace Environmental-protection dust removal device of dirt.
In order to achieve the above object, the technical solution adopted in the utility model is blast furnace provided by the utility model
With Environmental-protection dust removal device, including gravitational precipitator cabinet, it is provided with air inlet at the top of the gravitational precipitator cabinet, it is described heavy
The bottom of inertia force precipitator cabinet is provided with ash-unloading tube, and the side of the gravitational precipitator cabinet is provided with exhaust pipe, the gravity
Dust collector box body includes the multiple exclusion regions being axially arranged, and the shape of the exclusion region is semicylinder and is interspersed two-by-two,
The exclusion region is provided with secondary ash-unloading tube, and the secondary ash-unloading tube is connected to gravitational precipitator cabinet, the secondary ash-unloading tube
On be provided with unloading valve, the exhaust pipe altogether there are two and interconnect, be provided with above the gravitational precipitator cabinet into
The mouth of a river.
Preferably, the exclusion region includes the first exclusion region, the second exclusion region and third exclusion region.
Preferably, the exhaust pipe is located at the lower section of the first exclusion region and third exclusion region.
Preferably, being provided with transition ash-unloading hopper, institute between the top and gravitational precipitator cabinet of the secondary ash-unloading tube
The top surface shape of transition ash-unloading hopper is stated as semicircle.
Compared with prior art, it is the advantages of the utility model with good effect,
1, blast furnace Environmental-protection dust removal device provided by the utility model, by gravitational precipitator cabinet be arranged every
Disconnected area advantageously reduces the speed of coal gas decline, so that particle thinner in coal gas can also be settled down, this classification is heavy
Drop improves the efficiency of dust collection of whole device, can not only reduce the load of refined dedusting device, not increase the sky of whole device also
Between volume；The micronic dust accumulated on exclusion region can be cleared up one by one in deashing using water inlet, avoid that ash-unloading tube blocking occurs
Phenomenon.Whole design is relatively more reasonable, structure is simple, is suitble to large-scale promotion.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the main view for the blast furnace Environmental-protection dust removal device that embodiment provides；
Fig. 2 is the axonometric drawing for the blast furnace Environmental-protection dust removal device that embodiment provides；
Fig. 3 is the combination diagram of the transition ash-unloading hopper that embodiment provides and secondary ash-unloading tube；
In above each figure, 1, gravitational precipitator cabinet；2, air inlet；3, ash-unloading tube；4, exhaust pipe；5, exclusion region；6, secondary
Grade ash-unloading tube；7, unloading valve；8, water inlet；9, transition ash-unloading hopper.
Specific embodiment
It is with reference to the accompanying drawing and real in order to be more clearly understood that the above objects, features, and advantages of the utility model
Example is applied to be described further the utility model.It should be noted that in the absence of conflict, embodiments herein and reality
The feature applied in example can be combined with each other.For sake of convenience, hereafter such as there are "upper", "lower", "left", "right" printed words, only indicate
It is consistent with the upper and lower, left and right direction of attached drawing itself, restriction effect is not played to structure.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
Novel to be implemented using other modes described herein are different from, therefore, the utility model is not limited to be described below
The limitation of the specific embodiment of specification.
Embodiment, as shown in Figure 1, Figure 2 and Figure 3, blast furnace Environmental-protection dust removal device provided by the utility model, including
Gravitational precipitator cabinet 1, the top of the gravitational precipitator cabinet 1 are provided with air inlet 2, the gravitational precipitator cabinet 1
Bottom is provided with ash-unloading tube 3, and the side of the gravitational precipitator cabinet 1 is provided with exhaust pipe 4.Wherein, air inlet 2, ash-unloading tube 3
Utilization comparative maturity in the prior art, details are not described herein for the present embodiment.The emphasis of the utility model is to gravity
The improvement that the structure of dust collector box body on the whole proposes, main purpose is to improve efficiency of dust collection by being classified.
Specifically, the gravitational precipitator cabinet 1 provided by the utility model includes the multiple exclusion regions 5 being axially arranged,
The shape of the exclusion region 5 is semicylinder and is interspersed two-by-two that the exhaust pipe is total to there are two and interconnects.It is such
Words, can encounter exclusion region 5 by the coal gas that gasification cooling flue enters air inlet 2, and continuously during the decline
Intake process makes coal gas generate the component velocity of horizontal direction, closes speed and reduces, and is conducive to the lesser particle sedimentation of quality, and
The rule of sedimentation are as follows: it is heavier to be first deposited in top exclusion region, multiple partitions are more evenly distributed according to quality size
Qu Shang；Meanwhile the coal gas of horizontal motion is discharged from exhaust pipe.The method of this class settling improves removing for whole device
Dirt efficiency can not only reduce the load of refined dedusting device, not will increase the spatial volume of whole device also, can achieve and compare
High dust removing effects.
Ash is unloaded for convenience, and the exclusion region 5 provided by the utility model is provided with secondary ash-unloading tube 6, and the secondary is unloaded
Ash pipe 6 is connected to gravitational precipitator cabinet 1, is provided with unloading valve 7, the gravitational precipitator cabinet 1 on the secondary ash-unloading tube 6
Top be provided with water inlet 8.When unloading ash, ash is unloaded step by step according to sequence from high to low, opens unloading valve 7, injected clear water is
Dust can be flowed out from the inside of ash-unloading tube, cabinet.It is not to need following whole to beat as ash-unloading tube in the prior art
It opens, the flow of cinder-discharging port is larger and easy blocking, can only reduce cleaning efficiency in this way.Further, the secondary ash-unloading tube 6
Transition ash-unloading hopper 9 is provided between top and gravitational precipitator cabinet 1, the top surface shape of the transition ash-unloading hopper 9 is semicircle,
No matter ash-unloading tube is cylindric or prism-shaped, transition ash-unloading hopper all sleekly cooperates therewith, greatly facilitates particle in this way
Object sedimentation.And it can also take advantage of a situation and flow down when deashing.
In order to improve efficiency of dust collection and exhaust efficiency simultaneously, the exclusion region 5 provided by the utility model include first every
Disconnected area, the second exclusion region and third exclusion region, the exhaust pipe 4 are located at the lower section of the first exclusion region and third exclusion region,
That is two exhaust pipes are located at ipsilateral, and the position connected just two neighboring exclusion region longitudinal interval it
Between, in this case, the coal gas of horizontal movement can just flow to exhaust pipe, and particulate matter then continues to settle under the effect of gravity；
Moreover, the lower section that the first exclusion region is arranged in exhaust pipe can be guaranteed have enough coal gas to enter entire cabinet, coal gas is pushed
Constantly move downward.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation is applied to other fields, but all without departing from the content of the technical scheme of the utility model, according to this reality
With novel technical spirit any simple modification, equivalent variations and remodeling to the above embodiments, it is practical new to still fall within this
The protection scope of type technical solution.
Claims (4)
1. a kind of blast furnace Environmental-protection dust removal device, including gravitational precipitator cabinet, the top of the gravitational precipitator cabinet
It is provided with air inlet, the bottom of the gravitational precipitator cabinet is provided with ash-unloading tube, and the side of the gravitational precipitator cabinet is set
It is equipped with exhaust pipe, which is characterized in that the gravitational precipitator cabinet includes the multiple exclusion regions being axially arranged, the exclusion region
Shape is semicylinder and is interspersed two-by-two that the exclusion region is provided with secondary ash-unloading tube, the secondary ash-unloading tube and gravity
Dust collector box body is connected to, and is provided with unloading valve on the secondary ash-unloading tube, the exhaust pipe is total to there are two and interconnects, described
Water inlet is provided with above gravitational precipitator cabinet.
2. blast furnace Environmental-protection dust removal device according to claim 1, which is characterized in that the exclusion region includes first
Exclusion region, the second exclusion region and third exclusion region.
3. blast furnace Environmental-protection dust removal device according to claim 2, which is characterized in that the exhaust pipe is located at
The lower section of first exclusion region and third exclusion region.
4. blast furnace Environmental-protection dust removal device according to claim 3, which is characterized in that the top of the secondary ash-unloading tube
Transition ash-unloading hopper is provided between end and gravitational precipitator cabinet, the top surface shape of the transition ash-unloading hopper is semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820870323.XU CN208389565U (en) | 2018-06-06 | 2018-06-06 | Blast furnace Environmental-protection dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820870323.XU CN208389565U (en) | 2018-06-06 | 2018-06-06 | Blast furnace Environmental-protection dust removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208389565U true CN208389565U (en) | 2019-01-18 |
Family
ID=65135373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820870323.XU Expired - Fee Related CN208389565U (en) | 2018-06-06 | 2018-06-06 | Blast furnace Environmental-protection dust removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208389565U (en) |
-
2018
- 2018-06-06 CN CN201820870323.XU patent/CN208389565U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 |